Re: [PATCH 7/7] pinctrl: mediatek: paris: Support generic PIN_CONFIG_DRIVE_STRENGTH_UA

From: AngeloGioacchino Del Regno
Date: Tue Jan 11 2022 - 08:42:56 EST


Il 11/01/22 12:22, Chen-Yu Tsai ha scritto:
Some of the MediaTek chips that utilize the Paris pinctrl driver library
support a lower drive strength (<= 1mA) than the standard drive strength
settings (2~16 mA) on certain pins. This was previously supported by the
custom MTK_PIN_CONFIG_DRV_ADV parameter along with the
"mediatek,drive-strength-adv" device tree property.

The drive strength values for this hardware are 125, 250, 500, and 1000 mA,
and can be readily described by the existing "drive-strength-microamp",
which then gets parsed by the generic pinconf library into the parameter
PIN_CONFIG_DRIVE_STRENGTH_UA.

Add support for PIN_CONFIG_DRIVE_STRENGTH_UA while keeping the old
custom parameter around for backward compatibility.

Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
---

The indentation in the switch/case blocks is getting somewhat out of
control. I also have some cleanup changes to reverse the logic of the
if/break statements. Not sure if it should be done before or after this
patch though.

Hello Chen-Yu,



this commit is so nice that:

- My heart says that it's fine as it is, but

- My brain says that it makes a lot more sense if you push the cleanup

changes to reverse that logic before pushing this commit, as to reduce the

count of changed lines (hence, to reduce some noise)...



...so please, can you rebase this commit over the cleanups?



Thanks,

- Angelo